Which of the following specimens would be acceptable for platelet aggregation studies?
A) blood drawn in ethylenediaminetetraacetic acid (EDTA) and kept at room temperature for 6 hours
B) blood drawn in 3.2% sodium citrate and transported to the laboratory on ice (2° to 4° C)
C) blood drawn in a serum separator tube
D) blood drawn in 3.2% sodium citrate and kept at room temperature for 2 hours after drawing
Correct Answer:
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